When I replied about this subject previously, it was on the basis that image detection worked for me as a solution to this problem, but I have since found that it works much more reliably in some browsers than in others. For example, in Orion, it works every time, but in Brave Browser, that’s certainly not the case. 
I shall run some more experiments to try to find out why. In the meantime, @slferris, you might want to use another browser for sites that often bring up that checkbox. Note also that the challenge is much more likely to appear if you are using a VPN IP address (in particular, one that is suspected of having been used for potentially harmful actions against sites).